Why I had to buy an '07 Ninja 650 the moment I saw it. It was the first bike I ever saw with an under bike exhaust. Should have waited a year and got a Versys 650, but I did end up with an '11 Versys. I understand the premise behind the high exhausts for water crossings and ruts, but the Versys 650 handled all that well as long as you kept moving.Even with throwovers, I believe a basic rack or even just a simple bar is essential to stop them swinging about or sagging on to hot pipes, especially when banging around off road.
I've had or seen a few fires, large and small trying to make do without a rack.
Hitched high, the Kriega throwover never got near the Him pipe, but I had a long jubilee clip ready to bodge a heat shield, if needed.
On previous bikes I've levelled off similar upswept pipes to make room for bags.